Martin Behe (IMAGE) Paul Scherrer Institute Caption Martin Béhé, head of the Pharmacology Group in the Centre for Radiopharmaceutical Sciences at PSI, checks the quality of the newly developed substance using a so-called high-performance liquid chromatography system. Together with his team and ETH Zurich, he is working on novel medicines for the diagnosis of cancer cells. Credit Paul Scherrer Institute/Markus Fischer Usage Restrictions PSI provides image and/or video material free of charge for media coverage of the content of the above text. Use of this material for other purposes is not permitted. This also includes the transfer of the image and video material into databases as well as sale by third parties. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.